Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration
Investigating the motion of discrete oil droplets in a rotating flow field can provide a theoretical basis for optimizing the flow field and structural parameters of hydrocyclones and centrifugal separation equipment. In the present work, the particle image velocimetry (PIV) method was applied to st...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/16/13/5094 |
| _version_ | 1797591792061775872 |
|---|---|
| author | Lei Xing Shuai Guan Yang Gao Minghu Jiang |
| author_facet | Lei Xing Shuai Guan Yang Gao Minghu Jiang |
| author_sort | Lei Xing |
| collection | DOAJ |
| description | Investigating the motion of discrete oil droplets in a rotating flow field can provide a theoretical basis for optimizing the flow field and structural parameters of hydrocyclones and centrifugal separation equipment. In the present work, the particle image velocimetry (PIV) method was applied to study the velocity distribution of a three-dimensional axial-rotor-driven rotating flow field and the influence of the velocity distribution of different rotor speeds on the flow field. The radial migration of oil droplets with different particle sizes in the rotating flow field was visually analyzed using high-speed video (HSV). The results showed that the oil droplets with the same radial position had diameters of 2.677 and 4.391 mm, whereas the movement times to the axis were 0.902 and 0.752 s. The larger the oil droplet size, the shorter the time to move to the axial center of the rotating flow field. The radial velocities of oil droplets with diameters of 2.677 and 2.714 mm were 0.0221 and 0.02 m·s<sup>−1</sup>, respectively. In addition, a mathematical expression was established between the radial migration time and the oil droplet size in the rotating flow field. The accuracy of the proposed expression was verified using experiments. |
| first_indexed | 2024-03-11T01:42:23Z |
| format | Article |
| id | doaj.art-ccfcea57e9be4232ae2d920c3af353df |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:42:23Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ccfcea57e9be4232ae2d920c3af353df2023-11-18T16:30:19ZengMDPI AGEnergies1996-10732023-07-011613509410.3390/en16135094Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet MigrationLei Xing0Shuai Guan1Yang Gao2Minghu Jiang3School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaSchool of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaChina Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100000, ChinaSchool of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, ChinaInvestigating the motion of discrete oil droplets in a rotating flow field can provide a theoretical basis for optimizing the flow field and structural parameters of hydrocyclones and centrifugal separation equipment. In the present work, the particle image velocimetry (PIV) method was applied to study the velocity distribution of a three-dimensional axial-rotor-driven rotating flow field and the influence of the velocity distribution of different rotor speeds on the flow field. The radial migration of oil droplets with different particle sizes in the rotating flow field was visually analyzed using high-speed video (HSV). The results showed that the oil droplets with the same radial position had diameters of 2.677 and 4.391 mm, whereas the movement times to the axis were 0.902 and 0.752 s. The larger the oil droplet size, the shorter the time to move to the axial center of the rotating flow field. The radial velocities of oil droplets with diameters of 2.677 and 2.714 mm were 0.0221 and 0.02 m·s<sup>−1</sup>, respectively. In addition, a mathematical expression was established between the radial migration time and the oil droplet size in the rotating flow field. The accuracy of the proposed expression was verified using experiments.https://www.mdpi.com/1996-1073/16/13/5094rotating flow fieldoil dropletPIVvelocitydiameter |
| spellingShingle | Lei Xing Shuai Guan Yang Gao Minghu Jiang Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration Energies rotating flow field oil droplet PIV velocity diameter |
| title | Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration |
| title_full | Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration |
| title_fullStr | Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration |
| title_full_unstemmed | Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration |
| title_short | Measurement of a Three-Dimensional Rotating Flow Field and Analysis of the Internal Oil Droplet Migration |
| title_sort | measurement of a three dimensional rotating flow field and analysis of the internal oil droplet migration |
| topic | rotating flow field oil droplet PIV velocity diameter |
| url | https://www.mdpi.com/1996-1073/16/13/5094 |
| work_keys_str_mv | AT leixing measurementofathreedimensionalrotatingflowfieldandanalysisoftheinternaloildropletmigration AT shuaiguan measurementofathreedimensionalrotatingflowfieldandanalysisoftheinternaloildropletmigration AT yanggao measurementofathreedimensionalrotatingflowfieldandanalysisoftheinternaloildropletmigration AT minghujiang measurementofathreedimensionalrotatingflowfieldandanalysisoftheinternaloildropletmigration |